AP BIOLOGY

Detailed explanation-1: -Apoptosis is the process of programmed cell death. It is used during early development to eliminate unwanted cells; for example, those between the fingers of a developing hand. In adults, apoptosis is used to rid the body of cells that have been damaged beyond repair. Apoptosis also plays a role in preventing cancer.

Detailed explanation-2: -Apoptosis is characterised by a series of typical morphological features, such as shrinkage of the cell, fragmentation into membrane-bound apoptotic bodies and rapid phagocytosis by neighbouring cells.

Detailed explanation-3: -There are 4 stages of apoptosis: the initiation or stimulus for cell death, the active programmed cell death when the events become irreversible, phagocytosis of the dead cellular material, and inhibitory mechanisms of apoptosis.

Detailed explanation-4: -Apoptosis is programmed cell death. Explanation: Apoptosis is the programmed cell death in which a cascade of events leads to the death of the cell.

Detailed explanation-5: -Apoptosis is responsible for tissue remodelling during the development and turnover of normal tissue (e.g. haematopoietic cells) throughout the life span of multicellular organisms.